Merci macomaniac, j'essaye tout de suite
Voici le compte rendu :
[CODE]-bash-3.2# diskutil eraseDisk jhfs+ SDD gpt disk0
Started erase on disk0
Unmounting disk
Creating the partition map
Waiting for partitions to activate
Formatting disk0s2 as Mac OS Extended (Journaled) with name SDD
Initialized /dev/rdisk0s2 as a 113 GB case-insensitive HFS Plus volume with a 16384k journal
Mounting disk
Finished erase on disk0
-bash-3.2# diskutil eraseDisk jhfs+ HDD gpt disk1
Started erase on disk1
Unmounting disk
Creating the partition map
Waiting for partitions to activate
Formatting disk1s2 as Mac OS Extended (Journaled) with name HDD
Initialized /dev/rdisk1s2 as a 2 TB case-insensitive HFS Plus volume with a 155648k journal
Mounting disk
Finished erase on disk1
-bash-3.2# diskutil ap create disk0s2 disk1s2 "Macintosh HD"
Started APFS operation on disk0s2 (SDD)
Creating a new empty APFS Container
Unmounting Volumes
Switching disk0s2 to APFS
Switching disk1s2 to APFS
Creating APFS Container
FusionLC autodetect: regular Fusion
Created new APFS Container disk4
Disk from APFS operation: disk4
Finished APFS operation on disk0s2 (SDD)
Started APFS operation on disk4
Preparing to add APFS Volume to APFS Container disk4
Creating APFS Volume
Created new APFS Volume disk4s1
Mounting APFS Volume
Setting volume permissions
Disk from APFS operation: disk4s1
Finished APFS operation on disk4
-bash-3.2# [/CODE]